18665296

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{4723}}^1$

素因数の和:4763

約数の個数: 40

約数和(自身を含む): 41004320

約数和(自身を除く): 22339024

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 152, 208, 247, 304, 494, 988, 1976, 3952, 4723, 9446, 18892, 37784, 61399, 75568, 89737, 122798, 179474, 245596, 358948, 491192, 717896, 982384, 1166581, 1435792, 2333162, 4666324, 9332648, 18665296]

約数ペア:

[(1, 18665296), (2, 9332648), (4, 4666324), (8, 2333162), (13, 1435792), (16, 1166581), (19, 982384), (26, 717896), (38, 491192), (52, 358948), (76, 245596), (104, 179474), (152, 122798), (208, 89737), (247, 75568), (304, 61399), (494, 37784), (988, 18892), (1976, 9446), (3952, 4723)]